欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
套管－水泥环－地层两两界面的密封失效致使高压气体上窜至井口而引起环空带压，给油气田的勘探开发带来安全和环保隐患.采用Abaqus的黏弹性损伤cohesive孔压单元建立套管 水泥环 地层界面水力压裂过程中压裂液周向窜流的有限元模型，对水力压裂过程中微环隙的产生和扩展的数值模拟进行分析.结果表明：只要第一界面或者第二界面胶结强度小于地层的抗拉强度，不论射孔方位大小，井眼周围均会产生微环隙.在油气田完井时需要合理确定水泥石的强度参数，以避免微环隙的产生.
英文摘要：
When the casing cement interface and cement rock interface are failure to seal the casing and formation, the SAP most likely happened. By the viscoelasticity linear damage cohesive pore pressure elements of Abaqus, the numerical simulation model of micro annulus initiation and propagation during oil and gas well hydraulic fracturing is built. The initiation and propagation mechanism of micro annulus is studied, and the results show that when the cementing strength of the casing cement rock interfaces is lower than the rock tensile strength, the micro annulus emerges and propagates no matter what the direction of perforation is. In the oil and gas completion, the reasonable mechanics parameters of the cement should be selected, so as to avoid the initiation and propagation of the micro annulus.
同期刊论文项目
同项目期刊论文
Study on a Ranging System Based on Dual Solenoid Assemblies, for Determining the Relative Position o
Mechanical Analyses of Casings in Boreholes, under Non-uniform Remote Crustal Stress Fields: Analyti
Effects of organo-modified montmorillonite on the tribology performance of bismaleimide-based nanoco
Coupled dynamic analysis of deepwater drilling riser under combined forcing and parametric excitatio
Experimental investigation on the non-planar propagation of hydraulic fracture in Fractured Shale Re
Finite element analysis of deepwater conductor bearing capacity to analyze the subsea wellhead stabi
On the collapse resistance of multilayer cemented casing in directional well under anisotropic forma
Simulation and analysis of coal seam conditions on the stress disturbance effects of pulsating hydro
On the Use of PEBI Grids in the Numerical Simulations of Two-Phase Flows in Fractured Horizontal Wel
Finite element method for simulating the effects of torque and drag on buckling of tubular inside bo
A new method for determining the minimum gas injection rate required for hole cleaning in horizontal
Static analysis of deep-water marine riser subjected to both axial and lateral forces in its install
Structure,and Properties of Poly (vinylacetate-co-methyl methacrylate) Nanocomposite Microspheres Wi
The Research on Borehole Stability in Depleted Reservoir and Caprock: Using the Geophysics Logging D
In-situ encapsulating MMT intermediate particles by suspension polymerization of poly (methyl methac
Mechanical behavior analysis for the determination of riser installation window in offshore drilling
Reactivation mechanism of natural fractures by hydraulic fracturing in naturally fractured shale res
A magnet ranging calculation method for steerable drilling in build-up sections of twin parallel hor
A new electromagnetic beacon tool for directional drilling in steam assisted gravity drainage horizo
Real-Time Prediction and Optimization of Drilling Performance Based on a New Mechanical Specific Ene
The sensibility of mechanical behavior to loading rate for shale gas reservoir with different weak p
On Appropriately Matching the Bottomhole Pendulum Assembly with the Anisotropic Drill Bit, to Contro
期刊信息
位置：